COCOSMO.H

/* 
 * COCOSMO.H 
 * Component Cosmo Chapter 8 
 * 
 * Single include file that pulls in everything needed for other 
 * source files in the Cosmo application. 
 * 
 * Copyright (c)1993-1996 Microsoft Corporation, All Rights Reserved 
 * 
 * Kraig Brockschmidt, Software Design Engineer 
 * Microsoft Systems Developer Relations 
 * 
 * Internet  :  kraigb@microsoft.com 
 * Compuserve:  >INTERNET:kraigb@microsoft.com 
 */ 
 
 
#ifndef _COCOSMO_H_ 
#define _COCOSMO_H_ 
 
#define INC_OLE2 
#include <windows.h> 
#include <memory.h> 
#include <ole2.h> 
#include <ole2ver.h> 
#include <bookguid.h> 
#include <ipoly6.h> 
 
extern "C" 
    { 
    #include <commdlg.h> 
    } 
 
#include <classlib.h> 
#include "resource.h" 
 
 
//COCOSMO.CPP:  Frame object that creates a main window 
 
class CCosmoFrame : public CFrame 
    { 
    private: 
        HBITMAP         m_hBmpLines[5];     //Menu item bitmaps 
        UINT            m_uIDCurLine;       //Current line selection 
        BOOL            m_fInitialized;     //OleInitialize work? 
 
    protected: 
        //Overridable for creating a CClient for this frame 
        virtual PCClient  CreateCClient(void); 
 
        virtual BOOL      FRegisterAllClasses(void); 
        virtual BOOL      FPreShowInit(void); 
        virtual UINT      CreateGizmos(void); 
 
        virtual LRESULT   OnCommand(HWND, WPARAM, LPARAM); 
        virtual void      OnDocumentDataChange(PCDocument); 
        virtual void      OnDocumentActivate(PCDocument); 
 
        //New for this class 
        virtual void      CreateLineMenu(void); 
 
    public: 
        CCosmoFrame(HINSTANCE, HINSTANCE, LPSTR, int); 
        virtual ~CCosmoFrame(void); 
 
        //Overrides 
        virtual BOOL      FInit(PFRAMEINIT); 
        virtual void      UpdateMenus(HMENU, UINT); 
        virtual void      UpdateGizmos(void); 
 
        //New for this class 
        virtual void      CheckLineSelection(UINT); 
    }; 
 
 
typedef CCosmoFrame *PCCosmoFrame; 
 
 
 
 
 
//CLIENT.CPP 
 
/* 
 * The only reason we have a derived class here is to override 
 * CreateCDocument so we can create our own type as well as 
 * overriding NewDocument to perform one other piece of work once 
 * the document's been created. 
 */ 
 
class CCosmoClient : public CClient 
    { 
    protected: 
        //Overridable for creating a new CDocument 
        virtual PCDocument CreateCDocument(void); 
 
    public: 
        CCosmoClient(HINSTANCE); 
        virtual ~CCosmoClient(void); 
 
        virtual PCDocument NewDocument(BOOL, PCDocumentAdviseSink); 
    }; 
 
 
typedef CCosmoClient *PCCosmoClient; 
 
 
 
 
//DOCUMENT.CPP 
 
class CPolylineAdviseSink : public IPolylineAdviseSink6 
    { 
    private: 
        LPVOID              m_pv;        //Customizable structure 
        ULONG               m_cRef; 
        LPUNKNOWN           m_pUnkOuter; //Unknown for delegation 
 
    public: 
        CPolylineAdviseSink(LPVOID, LPUNKNOWN); 
        ~CPolylineAdviseSink(void); 
 
        //IUnknown members 
        STDMETHODIMP         QueryInterface(REFIID, PPVOID); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
 
        //Advise members. 
        STDMETHODIMP_(void) OnPointChange(void); 
        STDMETHODIMP_(void) OnSizeChange(void); 
        STDMETHODIMP_(void) OnColorChange(void); 
        STDMETHODIMP_(void) OnLineStyleChange(void); 
    }; 
 
typedef CPolylineAdviseSink *PCPolylineAdviseSink; 
 
 
/* 
 * The generic advisory interface.  This object controls it's own 
 * lifetime and the document becomes a user of the object with 
 * the last reference count. 
 */ 
 
class CImpIAdviseSink : public IAdviseSink 
    { 
    protected: 
        ULONG               m_cRef; 
        LPVOID              m_pObj; 
        LPUNKNOWN           m_pUnkOuter; 
 
    public: 
        CImpIAdviseSink(LPVOID, LPUNKNOWN); 
        ~CImpIAdviseSink(void); 
 
        STDMETHODIMP QueryInterface(REFIID, PPVOID); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
 
        STDMETHODIMP_(void)  OnDataChange(LPFORMATETC, LPSTGMEDIUM); 
        STDMETHODIMP_(void)  OnViewChange(DWORD, LONG); 
        STDMETHODIMP_(void)  OnRename(LPMONIKER); 
        STDMETHODIMP_(void)  OnSave(void); 
        STDMETHODIMP_(void)  OnClose(void); 
    }; 
 
typedef CImpIAdviseSink *PIMPIADVISESINK; 
 
 
 
//CHAPTER8MOD 
//Drag-drop interfaces we need in the document 
 
class CDropTarget : public IDropTarget 
    { 
    protected: 
        ULONG                m_cRef; 
        class CCosmoDoc     *m_pDoc; 
 
        LPDATAOBJECT         m_pIDataObject; 
 
    public: 
        CDropTarget(class CCosmoDoc *); 
        ~CDropTarget(void); 
 
        //IDropTarget interface members 
        STDMETHODIMP QueryInterface(REFIID, PPVOID); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
 
        STDMETHODIMP DragEnter(LPDATAOBJECT, DWORD, POINTL, LPDWORD); 
        STDMETHODIMP DragOver(DWORD, POINTL, LPDWORD); 
        STDMETHODIMP DragLeave(void); 
        STDMETHODIMP Drop(LPDATAOBJECT, DWORD, POINTL, LPDWORD); 
    }; 
 
typedef CDropTarget * PCDropTarget; 
 
 
class CDropSource : public IDropSource 
    { 
    protected: 
        ULONG                m_cRef; 
        class CCosmoDoc     *m_pDoc; 
 
    public: 
        CDropSource(class CCosmoDoc *); 
        ~CDropSource(void); 
 
        //IDropSource interface members 
        STDMETHODIMP QueryInterface(REFIID, PPVOID); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
 
        STDMETHODIMP QueryContinueDrag(BOOL, DWORD); 
        STDMETHODIMP GiveFeedback(DWORD); 
    }; 
 
typedef CDropSource * PCDropSource; 
 
//End CHAPTER8MOD 
 
 
 
//Constant ID for the window polyline that lives in a document window 
#define ID_POLYLINE         10 
 
 
class CCosmoDoc : public CDocument, public IUnknown 
    { 
    friend class CPolylineAdviseSink; 
    friend class CImpIAdviseSink; 
 
    //CHAPTER8MOD 
    //These need access to FQueryPasteFromData, FPasteFromData 
    friend class CDropTarget; 
    friend class CDropSource; 
    //End CHAPTER8MOD 
 
    protected: 
        UINT                    m_uPrevSize; 
 
        PPOLYLINE               m_pPL; 
        LPSTORAGE               m_pIStorage; 
        LPPERSISTSTORAGE        m_pIPersistStorage; 
 
        PPOLYLINEADVISESINK     m_pPLAdv; 
        PIMPIADVISESINK         m_pIAdviseSink; 
 
        DWORD                   m_dwConn;   //Advisory connection 
        ULONG                   m_cRef;     //Document ref count 
 
        LPDATAOBJECT            m_pIDataClip;   //Clipboard object 
 
        //CHAPTER8MOD 
        PCDropTarget            m_pDropTarget;  //Registered target 
        BOOL                    m_fDragSource;  //Source==target? 
        //End CHAPTER8MOD 
 
    protected: 
        virtual BOOL    FMessageHook(HWND, UINT, WPARAM, LPARAM 
            , LRESULT *); 
 
        //CHAPTER8MOD 
        virtual BOOL    FQueryPasteFromData(LPDATAOBJECT); 
        virtual BOOL    FPasteFromData(LPDATAOBJECT); 
        LPDATAOBJECT    TransferObjectCreate(void); 
        void            DropSelectTargetWindow(void); 
        //End CHAPTER8MOD 
 
    public: 
        CCosmoDoc(HINSTANCE, PCFrame); 
        virtual ~CCosmoDoc(void); 
 
        //Need a controlling unknown for our interfaces 
        STDMETHODIMP         QueryInterface(REFIID, PPVOID); 
        STDMETHODIMP_(ULONG) AddRef(void); 
        STDMETHODIMP_(ULONG) Release(void); 
 
        virtual BOOL     FInit(PDOCUMENTINIT); 
        virtual void     Clear(void); 
 
        virtual UINT     ULoad(BOOL, LPTSTR); 
        virtual UINT     USave(UINT, LPTSTR); 
 
        virtual void     Undo(void); 
        virtual BOOL     FClip(HWND, BOOL); 
 
        virtual BOOL     FQueryPaste(void); 
        virtual BOOL     FPaste(HWND); 
 
        virtual COLORREF ColorSet(UINT, COLORREF); 
        virtual COLORREF ColorGet(UINT); 
 
        virtual UINT     LineStyleSet(UINT); 
        virtual UINT     LineStyleGet(void); 
    }; 
 
typedef CCosmoDoc *PCCosmoDoc; 
 
 
//These color indices wrap the polyline definitions 
#define DOCCOLOR_BACKGROUND             POLYLINECOLOR_BACKGROUND 
#define DOCCOLOR_LINE                   POLYLINECOLOR_LINE 
 
 
#endif //_COCOSMO_H_